Answer:
See below ~
Explanation:
Formula for area of a triangle :
Area (triangle) = 1/2 × base × height
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Solving :
Triangle 1 (Top Left)
⇒ Area = 1/2 × 11 × 3
⇒ Area = 33/2
⇒ Area = 16.5 in²
Triangle 2 (Top Right)
⇒ Area = 1/2 × 8 × 7.2
⇒ Area = 4 × 7.2
⇒ Area = 28.8 cm²
Triangle 3 (Bottom Left)
⇒ Area = 1/2 × (5.5 + 5) × 10.4
⇒ Area = 10.5 × 10.4
⇒ Area = 109.2 m²
Triangle 4 (Bottom Right)
⇒ Area = 1/2 × (2 + 7) × 5.5
⇒ Area = 9 × 2.75
⇒ Area = 24.75 in²