Answer:
The angles you know, added together subtracted from 180
180 - (Right angle + angle you know)
OR
the other angles as the person said
Step-by-step explanation:
Lets say a triangle has a right angle, an angle of 55 degrees, and an unknown angle. We want to find the angle of the unknown angle (excuse my wording)
Since we know that right angles are always 90 degrees, we can add that with the 55 degrees of the other angle that we know.
90 + 55 = 145.
Since triangles have a total angle of 180 degrees, we subtract 180 - 145.
180 - 145 = 35
So the answer is 35.
I hope this helped :)
Volume of pyramid = 1/3*AH, where A is the area of the base and H is the height
Since we are given three sides of the triangle (the base of the pyramid), we should use Heron formula: Area of a triangle = sq.root of(s(s - a)(s - b)(s - c)), where s is the semi-perimeter (ie. the perimeter divided by 2) and a, b and c are side lengths.
s = (5 + 12 + 13)/2
= 30/2 = 15
A = sq,root of(15(15 - 5)(15 - 12)(15 - 13))
= sq.root of (15*10*3*2)
= sq.root of 900
= 30 m^2
Volume = 1/3*AH
= 1/3*30*9
= 90 m^3
Answer:
42
Step-by-step explanation:
9 × 6 = 54
So 7 × 6 = 42 successful throws
Answer:
1.98 × 10^10
Step-by-step explanation:
First solve for how many text messages were sent out per one month:
22,000,000 × 900
19,800,000,000
Convert into scientific notation:
1.98 × 10^10
In scientific notation, there can only be one number before the decimal. The rest of the numbers must be after the decimal; hence, why I put the numbers 9 and 8 after the decimal. If the rest of the numbers are zeros, you do not have to add them after the decimal. Instead, starting from right to left, count the number places until you reach your decimal. The number you have counted will be your exponent. I counted nine 0's, one 8, and one 9 which made this exponent 10 as there were 10 decimal placements.
Answer:
-5r + 8r +5
= (-5+8)r+5 (we can calculate number in same variabe)
= 3r +5
hope it helps ^°^