Answer:
π/4 in^2.
Step-by-step explanation:
The exact value = π r^2
= π * (1/2)^2
= π/4 in^2.
Answer:
4 : 7
Step-by-step explanation:
Given 2 similar figures the if the ratio of perimeters = a : b
The the ratio of areas = a² : b²
Here
ratio of areas = 16 : 49 , then
ratio of perimeters = : = 4 : 7
Answer:
no solution
Step-by-step explanation:
Solve:
6(2k + 1) = 12k + 1
Expand brackets:
⇒ 12k + 6 = 12k + 1
Subtract 12k from both sides:
⇒ 6 = 1
As 6 ≠ 1 there is no solution
56.30
With a calculator, press second or shift and then tan to find the degrees.