Answer:
first one x = 26
second one x = 11.12
Step-by-step explanation:
a^2 + b^2 = c^2
24^2 + 10^2 = c^2
676 = c^2
26 = c
a^2 = c^2 - b^2
a^2 = 12^2 - 4.5^2
a^2 = 123.75
a = 11.12
Acute
it is not a right angle, that's 90
not obtuse, above 90
So acute less than 90
90
= 6(12+3)
= 6*12 + 6*3
= 72 + 18
= 90
x = 21/10
3/10 = x/7
Cross multiply.
10x = 21
