CosA=(21^2+23^2-25^2)/2*21*23
cosA=345/966
A=cos^-1(345/966)
A=69.08
Step-by-step explanation:
sol;
x+1=y...(1)
3y-7=2x....(2)
or, 3(x+1)-72x [from (1)]
or, 3x+3-7=2x
or, 3x-2x=7-3
x=4
now,
putting the value of x in (1)
y=x+1
=4+1
=5
PR and SQ are the diagonal of PQRS.
Answer:
A
Step-by-step explanation:
It would be A, because EQUAL lateral is all sides are equal
Answer:
just type the values in your google
Step-by-step explanation:
The answer is 70.
5 + 2 = 7
7 x 10 = 70
