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zhannawk [14.2K]
2 years ago
7

I need it fasttttttttttttttttttttttttttttttttttttttttttttt

Mathematics
1 answer:
kherson [118]2 years ago
8 0

Answer:

a) 30cm²

b) 8.75cm²

c) 30cm²

Step-by-step explanation:

a) Area of a triangle = 1/2 × base × perpendicular height

= 1/2 × 12 × 5

= 30cm²

b) Area of a triangle = 1/2 × base × perpendicular height

= 1/2 × 3.5 × 5

= 8.75cm²

c) Area of a triangle = 1/2 × base × perpendicular height

= 1/2 × 5 × 12

= 30cm²

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