Answer:
<u>A. 120 cm²</u>
Step-by-step explanation:
Area of figure :
- 1/2 x base x height
- 1/2 x 24 x 10
- 12 x 10
- <u>120 cm²</u>
Use Pythagorean theorem
/17 ^ 2 + x ^ 2 = 20 ^ 2
17 + x^2 = 400
x^2 = 383
x = 19.57
Answer:
10,11,12
Step-by-step explanation:
X+x+1+x+2
X+2(x+1)=x+2 + 20
X +2x+2 = x+22
3x+2 = x+22
2x +2 = 22
2x = 20
X = 10
Numbers are 10,11,12
Double checking 10+2*11 = 32
12+20 = 32
So it works