SaiBook.us Geometry

Lesson Example Discussion Quiz: Class Homework

Quiz In Class

Title: Area of Triangle(Based on Angles)

Grade: 4-a Lesson: S2-L6

Explanation: Hello Students, time to practice and review. Let us take next 10-15 minutes to solve the ten problems using the Quiz Sheet. Then submit the quiz to get the score. This is a good exercise to check your understanding of the concepts.

Quiz: in Class

Problem Id	Problem	Options
1	Find the area of triangle ABC, given that the sides AB = 2 units, BC = 4 units and ∠ABC = 60°.	A) \$4 \sqrt 3 sq.units\$ B) \$2 \sqrt 3 sq.units \$ C) \$6 \sqrt 3 sq.units \$ D) \$3 \sqrt 3 sq.units\$
2	Find the area of a right-angle triangle with base is b = 9cm and hypotenuse is H = 20cm.	A) 60.23 sq.cm B) 80.23 sq.cm C) 81.29 sq.cm D) 70.23 sq.cm
3	Find the area of triangle PQR if p = 30 degrees and q = 5, r = 10 in units.	A) 10.5 sq.units B) 11.5 sq.units C) 10.5 sq.units D) 12.5 sq.units
4	The length of each equal side of an isosceles triangle is 20 cm and the included angle between those two sides is 90 degree. Find the area of the triangle.	A) 197 sq.cm B) 198 sq.cm C) 199 sq.cm D) 200 sq.cm
5	The base and height of a right triangle are 25 m and 5 m. Find the area of a triangle.	A) 62 sq.cm B) 60 sq.cm C) 62.5 sq.cm D) 69 sq.cm
6	The right-angle triangle has a base of 4 cm and a height of 6 cm, then find the area of a triangle.	A) 11 sq.cm B) 16 sq.cm C) 12 sq.cm D) 14 sq.cm
7	ABC is an obtuse triangle with area 37.5 sq ft, angle B = 60°, and AB = 8.66 ft. Find height.	A) 7.5 feet B) 8.2 feet C) 9.5 feet D) 6.5 feet
8	An ABC right-angled triangle with a height of 5 cm and an acute angle of 45 degrees. Find the area.	A) 12.5 sq.cm B) 15.5 sq.cm C) 18.5 sq.cm D) 11.5 sq.cm
9	An acute triangle has a length of base of 12 m and a height is 13 m find the area of a triangle.	A) 66 sq.m B) 78 sq.m C) 82 sq.m D) 72 sq.m
10	The ABC an obtuse triangle has a base length that is 10 meters and a height of 15 meters.	A) 82 sq.m B) 75 sq.m C) 66 sq.m D) 78 sq.m

Problem Id

Problem

Options

Find the area of triangle ABC, given that the sides AB = 2 units, BC = 4 units and ∠ABC = 60°.

A) \$4 \sqrt 3 sq.units\$

B) \$2 \sqrt 3 sq.units \$

C) \$6 \sqrt 3 sq.units \$

D) \$3 \sqrt 3 sq.units\$

Find the area of a right-angle triangle with base is b = 9cm and hypotenuse is H = 20cm.

A) 60.23 sq.cm

B) 80.23 sq.cm

C) 81.29 sq.cm

D) 70.23 sq.cm

Find the area of triangle PQR if p = 30 degrees and q = 5, r = 10 in units.

A) 10.5 sq.units

B) 11.5 sq.units

C) 10.5 sq.units

D) 12.5 sq.units

The length of each equal side of an isosceles triangle is 20 cm and the included angle between those two sides is 90 degree. Find the area of the triangle.

A) 197 sq.cm

B) 198 sq.cm

C) 199 sq.cm

D) 200 sq.cm

The base and height of a right triangle are 25 m and 5 m. Find the area of a triangle.

A) 62 sq.cm

B) 60 sq.cm

C) 62.5 sq.cm

D) 69 sq.cm

The right-angle triangle has a base of 4 cm and a height of 6 cm, then find the area of a triangle.

A) 11 sq.cm

B) 16 sq.cm

C) 12 sq.cm

D) 14 sq.cm

ABC is an obtuse triangle with area 37.5 sq ft, angle B = 60°, and AB = 8.66 ft. Find height.

A) 7.5 feet

B) 8.2 feet

C) 9.5 feet

D) 6.5 feet

An ABC right-angled triangle with a height of 5 cm and an acute angle of 45 degrees. Find the area.

A) 12.5 sq.cm

B) 15.5 sq.cm

C) 18.5 sq.cm

D) 11.5 sq.cm

An acute triangle has a length of base of 12 m and a height is 13 m find the area of a triangle.

A) 66 sq.m

B) 78 sq.m

C) 82 sq.m

D) 72 sq.m

The ABC an obtuse triangle has a base length that is 10 meters and a height of 15 meters.

A) 82 sq.m

B) 75 sq.m

C) 66 sq.m

D) 78 sq.m