Question

Mathematics question

Answer 1

Explanation:

You will find authentic some of the areas of 3 shapes, two of them are triangles, and one is rectangle.

The formula for calculating the area of right angle triangle is A= 1/2bh

The formula used to find the area of rectangle is A= W×L

A1+A2+A3

= 1/2b1h1+ 1/2b2h2+ W×L

1/2(10inches)(30inches)+ 1/2 (10 inches)(30 inches)+ (30 inches)(20 inches)

=150 inches²+ 150 inches²+ 600inches²

=900 inch²

Answer 2

Explanation:

area of rectangle (a1)=b×h

• 20×30
• 600in²

area of triangle=1/2 ×b×h

• 1/2×40×30
• 600in²

total area of arrow=a1+a2

• 600+600
• 1200in²

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