Answer:
1. 12cm²
2.51cm²
3. 40cm²
4. 75m²
5. 35m²
Step-by-step explanation:
1. A = base × height / 2
= 6cm × 4cm / 2
= 24cm² / 2
= 12cm²
2. A = (a+b / 2) h
= (5cm + 12cm / 2) 6cm
= (17cm /2) 6cm
= 8.5cm × 6cm
= 51cm²
3. A= (a+b / 2) h
= (8cm + 8cm /2) 5cm
= (16cm/2) 5cm
= 8cm × 5 cm
= 40 cm²
4. A = Base × height /2
= 15m × 10m /2
= 150m² /2
= 75m²
5. A= (a+b /2) h
= (6m + 8m /2) 5m
= (14m /2) 5m
= 7m × 5m
= 35m²
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Answers & Comments
Answer:
1. 12cm²
2.51cm²
3. 40cm²
4. 75m²
5. 35m²
Step-by-step explanation:
1. A = base × height / 2
= 6cm × 4cm / 2
= 24cm² / 2
= 12cm²
2. A = (a+b / 2) h
= (5cm + 12cm / 2) 6cm
= (17cm /2) 6cm
= 8.5cm × 6cm
= 51cm²
3. A= (a+b / 2) h
= (8cm + 8cm /2) 5cm
= (16cm/2) 5cm
= 8cm × 5 cm
= 40 cm²
4. A = Base × height /2
= 15m × 10m /2
= 150m² /2
= 75m²
5. A= (a+b /2) h
= (6m + 8m /2) 5m
= (14m /2) 5m
= 7m × 5m
= 35m²