Answer:
a) Surface area = 616 cm²
b) Volume = V = 1083 cm³
Step-by-step explanation:
Surface area and volume of a regular triangular pyramid that has a base edge of 16 cm and a slant height of 15 cm
a) Formula for surface area = Base area × 1/2(perimeter × slant height)
Base area = Base edge²
=( 16 cm)² = 256 cm²
Perimeter = Base edge × 3
= 16 cm × 3 = 48 cm
Hence:
Surface Area = 256 cm² + 1/2(48 × 15)
= 256 cm² + 360 cm²
= 616 cm²
b) Volume = 1/3 × Base area × Height
1082.758616785cm³
Approximately = 1083 cm³
0.2% becouse
0.002=2/1000=0.2/100
A =(b x h)/2
= 10 x 8
= 80/2
= 40 mm square
4/6=66.67%
5/8=62.5%
Therfore 4/6 is bigger than 5/8
Answer:
cubic trinomial
Step-by-step explanation:
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