This question is quite similar to the one earlier, so we will be using SOH CAH TOA again.
We first have to calculate the length of CB. All we have to do for this is use Pythagoras's theorem.
√12² - 6²
= 10.39230... cm
Now we use SOH CAH TOA for the next part.
Lets label the sides.
CB is the opposite
CD is the hypotenuse
We will use sin, since we know the angle, the opposite and we want to know the hypotenuse.
sin(55) = opp / hyp
sin(55) = 10.39230... / x
10.39230.. / sin(35) = x (you re-arrange the equation to get x alone)
12..68666.. = x
So x = 12.687 to 3 significant figures
Answer:
Hey, do you know how to screenshot images? There is also a website for Brainly if needed
Step-by-step explanation:
Answer:
2.9282 × 10^8
Step-by-step explanation:
(110×110×110×110)2
(146410000)2
292820000
292820000 can be simplified to 2.9282 × 10^8.
Hope this helps.
Answer:
The answer is -86
Step-by-step explanation:
-7 squared is 49
49 × 2 = 98
12-98= -86
Step-by-step explanation:
in isoscles triangles two angles and lengths are equal .
two sides equal 3.5
so both of the angles are 55°
the sum of the angles in a triangle is 180°, so
x = 180° - 55° - 55°
x = 70° (Ans)