Record the measures of the interior angles of ABC( a, b, and y) and find their sum

By looking at the diagram, you can see what the measurements of a, b, and y.

m∠a = 90°

m∠b = 53.15°

m∠y = 36.87°

Since all triangles have a sum of 180° and the diagram shows a triangle, you will get 180° when you add up all of the measurements.

90 + 53.15 + 36.87 = 180.02

180.02 can be rounded to 180.

it is a. 4.2 because 7.6-3.4 gets the remaining length of 4.2. i might be wrong but i am pretty sure this is the answer.

multiply length by height. multiply the length by the height, and then double the product. work out 10 x 10 results = 100 square inches, then work out 100 x 2 = 200. the answer is 200 square inches.

step-by-step explanation: