Answer:
28.4cm
Step-by-step explanation:
Perimeter of the wall will be the sum if all the sides of the right angled triangle.
Given the height of the triangle = 6cm
Hypotenuse = 12cm
Using Pythagoras theorem to get the third side
Hypotenuse² = opposite²+adjacent²
Taking the height as the opposite = 6cm
12² = 6²+adj²
Adj² = 12²-6²
Adj² = 144-36
Adj² = 108
Adj = √108
Adj = 10.39cm
The perimeter of the wall = 6cm+12cm+10.39cm
= 28.39cm
= 28.4cm to nearest tenth.
5 hundreds x 10 = 500 x 10 = 5,000
Answer:
42
Step-by-step explanation:
HIJK IS increased by a factor of 3/4 to formH'I'J'K'
so every side is increased by a factor of 3/4
so,Side J'K'=24+24×3/4=42
MCDA+mBCD=180
mBCD=180-66=114 degrees
Option C