It will be b : KikaKika 700:
Step-by-step explanation:
1.When all the three cut outs of the angles A, B, C placed adjacent to each other at a point, then it forms a line forming a straight angle, i.e. 180°.
Flence, it is proved that the sum of the three angles of a triangle is 180°.
Therefore, ∠A + ∠B + ∠C =180
The area of a <span>isosceles triangle:
S=(bh)/2, where b is for base (=4) and h is for height (=x+3)
We get the equation:
10=(4*(x+3))/2
10=(4x+12)/2
4x+12=20
4x=8
x=2
</span>
Answer:
x = -5
Step-by-step explanation:
x = -20/4 = -5
Answer:
this has happened to me before. unfortunately I had to refresh the page.
Step-by-step explanation:
write down the answers you already have done.
