Find the area of a triangle whose length of each side is 9 cm, 13 cm and 15 cm.

A) \$47.34 cm^2\$

B) \$47.43 cm^2\$

C) \$47.56 cm^2\$

D) \$47.65 cm^2\$

Find the area of an equilateral triangle whose side is 21 m.

A) \$150.59 m^2\$

B) \$150.72 m^2\$

C) \$150.95 m^2\$

D) \$150.27 m^2\$

Find the height of a triangle with a base of 13 cm and a area is \$314 cm^2\$.

A) 48.22 cm

B) 48.13 cm

C) 48.31 cm

D) 48.37 cm

Given the coordinates of the vertices of a triangle as A(3, 4), B(7, 6), and C(2, 9) units, find the area of the triangle.

A) \$13 units^2\$

B) \$12 units^2\$

C) \$10 units^2\$

D) \$11 units^2 \$

A triangle has side lengths of 8 cm, 10 cm, and 12 cm. Find the area of the triangle.

A) \$39.68 cm^2\$

B) \$39.83 cm^2\$

C) \$39.86 cm^2\$

D) \$39.88 cm^2\$