Question

need answer urgent ​

Answer 1

Step-by-step explanation:

1. perimeter of the triangle = 22+24+28 = 74 cm

area of the triangle = 28×17/2 = 238 cm2

2. 1 cm wire is divided into 4 sides. so each side = 1/4 cm

area of the square = 1/4 × 1/4 = 1/16 cm2

3. L = 12 + 2×3/2 = 15 cm

H = 8 + 2×3/2 = 11 cm

area of the frame = 15×11 - 12×8 = 165-96 = 69 cm2