Step-by-step explanation
Here ...I'm not too sure about the question as you have written
P = 2 ( 1 + 6 ) and ask to solve for L ...
.So I guess the question you have written is wrong .. ...and I guess there should be L in the place of 1.
...So let me correct the question....
P = 2 ( l + 6 )
P = 2l + 12
P - 2l = 12
- 2l = 12 - P
- 2l = - P + 12
Change the sign of both side of the equation...
2l = P + 12
divide both side by the same number...
L = ( P + 12 ) ÷ 2

Calculate the product of rational numbers...

Answer:
His average speed was 55.8 miles per hour
Answer:
6.∠ADB = ∠BDC reason :(CPCTC)
7.BD bisects ∠ADC reason :(From statement 6)
Hope it helps you........
area = pi X radius squared
so area = 3.14 x 124^2
= 3.14 x 15376 = 48,280.64 square centimeters.
Answer:
ans=24/7
Step-by-step explanation:
cosD=7/25=b/h
sinD=24/25=p/h
now....tanD=p/b=24/7