⇒ s = a+b+c2=5+12+132 a + b + c 2 = 5 + 12 + 13 2 = 15 cm.
Area of the base = √s(s−a)(s−b)(s−c)
= √15×10×3×2 15 × 10 × 3 × 2 cm2 = 30 cm2
Answer:
y=-15
Step-by-step explanation:
Answer:
7.5 m
10 m
Step-by-step explanation:
i) 30 m ÷ 4 = 7.5m
iii) 30m ÷ 3 = 10m
Answer:
168
Step-by-step explanation:
3 + .11x = 21.48
.11x = 18.48
x = 168