30. A drawing of a sailboat was made using a rectangle and two right triangles, as shown. 6 cm 2 cm 3 cm 2.5 cm 12 cm What is the area of the drawing of the sailboat in square centimeters? Record your answer and fill in the bubbles on your answer document. Be sure to use the correct place value. Kaunad​

fsfd

step-by-step explanation:

fdddff

5   1/4   miles per hour

step-by-step explanation:

15   3/4 / 3 = 5   1/4

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.