Answer:
6.4
Step-by-step explanation:
The given triangle is a Right Angled Triangle with right angle at E.
So, measure of angle E = 90 degrees
measure of angle D = 62 degrees
measure of side FE = 12
We have to find the measure of side DE. Note that side DE is adjacent to Angle D and side FE is opposite to angle D. So we can use tangent ratio to find the measure of DE.
![\textrm{Tangent of angle}=\frac{Opposite}{Adjacent}\\\\tangent(62)=\frac{FE}{DE}\\\\tangent(62)=\frac{12}{DE}\\\\DE=\frac{12}{tangent(62)}\\\\DE=6.4](https://tex.z-dn.net/?f=%5Ctextrm%7BTangent%20of%20angle%7D%3D%5Cfrac%7BOpposite%7D%7BAdjacent%7D%5C%5C%5C%5Ctangent%2862%29%3D%5Cfrac%7BFE%7D%7BDE%7D%5C%5C%5C%5Ctangent%2862%29%3D%5Cfrac%7B12%7D%7BDE%7D%5C%5C%5C%5CDE%3D%5Cfrac%7B12%7D%7Btangent%2862%29%7D%5C%5C%5C%5CDE%3D6.4)
Therefore, the value of DE, rounded to nearest tenth is 6.4
Step-by-step explanation:
a)6!+12-3
=6!+9
b)-18+3!+4
=3!-14
=3!+(-14)
both are in the form if (+)!+constant.
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Answer:
What’s the question?
Step-by-step explanation:
Answer:
y =-x+ 5
y = -2/3x + 5/3
Step-by-step explanation:
Answer:
11 143. ...
Step-by-step explanation:
98-87=11
76+67=143