Answer:
b = √79
Step-by-step explanation:
using pythagorath's theorem
angle 1 + angle 2 = 180
3x - 5 + 6x + 14 = 180
9x + 9 = 180
9x = 171
9x/9 = 171/9
x = 19
could you write in in english
Brenda ran 263.76 metres.
The circumference of a circle is two times pi times its radius. Brenda rand that twice, so we need:
2 × 2πr
= 4πr
= 4 × 3.14 × 21m
= 263.73m
