Question

plz solve this 13,14,15​

Answer 1

Answer:

(13) Perimeter = 48 cm

Side = x

4x = 48

x = 48 ÷ 4

x = 12

Area = Side × Side

= (12 × 12) cm²

= 144 cm²

(14) An Exterior angle of a triangle equals to the sum of its interior opposite angles.

(15) The tree is forming a right angled triangle

Perpendicular = 5 m

Base = 12 m

Hypotenuse = x

P² + B² = H²

5² + 12² = x²

25 + 144 = x²

169 = x²

13 × 13 = x²

13 = x

Hence, hypotenuse = 13 m

Original height of tree = Perpendicular + Hypotenuse

= 5 m + 13 m

= 18 m

Hope it helps