to find the area of the figure, you first need to find the area of the separate figures: a triangle and a square.
first, find the area of the triangle:
multiply 13 and 5 to get 65.
divide 65 by 2.
32.5.
then, find the area of the rectangle:
multiply 5 and 14 to get 70.
add those answers up, and you get:
102.5
Y = 5x + 4
Gradient = slope = 5
(0,4) = y - intercept
X=5
Work:
y=2x-10
4x=2x-10
2x=10, then divide 2x on each side
x=5
2x squared would be you final answer
Answer: 75.4
Steps:
Circumference = 2πr
π = pi
r = radius
2π(12) = 75.39822