Please help me !

This value is approximate.

Explanation:

Let's divide the figure into 3 regions.

The goal is to find A+B+C

Region A:

A full circle has area of pi*r^2. Plug in the radius of 3 (half the diameter 6) and we get 9pi as the exact area. Your teacher wants you to replace pi with 3, so 9pi = 9*3 = 27 approximately

27 represents the approximate area of the full circle, but we want only half of it. So 27/2 = 13.5 is the approximate area of region A.

Region B

area = length*width

area = 10*6

area = 60 square inches

Region C

The base of the triangle is 14-10 = 4 inches. The height is the same as the rectangle (6 inches).

area = 0.5*base*height

area = 0.5*4*6

area = 12 square inches

To recap everything so far, we found the areas of the regions to be...

Therefore,

total area = A+B+C

total area = 13.5+60+12

total area = 85.5 which is approximate

angles 1 and 3 are vertical angles, meaning that they are equal to each other. to solve this you may set angle 1 and 3 equal to each other and just solve for x like

110 = 2x + 10

100 = 2x

50 = x

check:

110 = 2* 50 + 10

110 = 100 + 10

110 = 110

hope this !

~just a girl in love with shawn mendes

17

step-by-step explanation: