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Step-5

Title: Angles

Grade: 4-a Lesson: S3-L1

Explanation: Hello Students, time to practice and review the steps for the problem.

Lesson Steps

Step	Type	Explanation	Answer
1	Problem	Identify the type of triangle.
2	Step	The given image shows Isoceles triangle.
3	Step	An isosceles triangle is a triangle that has at least two sides of equal length.
4	Step	The angles opposite those equal sides may or may not be equal.
5	Step	Compare the given options with the definition of isosceles triangle.
6	Step	So the given image is a isosceles triangle
7	Sumup	Can you summarize what you’ve understood in the above steps?
8	Choice.A	This is incorrect because if all three angles are less than 90 degrees, the triangle is an Acute Triangle	Acute triangle
9	Choice.B	This is incorrect because an equilateral triangle is a triangle in which all three sides are of equal length	Equilateral triangle
10	Choice.C	This is correct because an isosceles triangle is a triangle that has at least two sides of equal length	Isosceles triangle
11	Choice.D	This is incorrect because a right angle is an angle that measures exactly 90 degrees	Right triangle
12	Answer	Option	C
13	Sumup	Can you summarize what you’ve understood in the above steps?

Step

Type

Explanation

Answer

Problem

Identify the type of triangle.

Step

The given image shows Isoceles triangle.

Step

An isosceles triangle is a triangle that has at least two sides of equal length.

Step

The angles opposite those equal sides may or may not be equal.

Step

Compare the given options with the definition of isosceles triangle.

Step

So the given image is a isosceles triangle

Sumup

Can you summarize what you’ve understood in the above steps?

Choice.A

This is incorrect because if all three angles are less than 90 degrees, the triangle is an Acute Triangle

Acute triangle

Choice.B

This is incorrect because an equilateral triangle is a triangle in which all three sides are of equal length

Equilateral triangle

Choice.C

This is correct because an isosceles triangle is a triangle that has at least two sides of equal length

Isosceles triangle

Choice.D

This is incorrect because a right angle is an angle that measures exactly 90 degrees

Right triangle

Answer

Option

Sumup

Can you summarize what you’ve understood in the above steps?