Our triangle is ABC with ∠C = 90°
1) AB² = BC² + AC² (Pythagorean theorem)
25² = 20² + AC²
AC² = 625 - 400
AC² = 225
AC = 15
2) PΔABC = AB + BC + AC = 25 + 15 + 20 = 60
3) SΔABC = AC * BC * 1/2 = 15 * 20 * 1/2 = 150
Answer: the perimeter is 60 cm and the area is 150 cm² .
Answer:
The ac product of
is <u>420</u>.
The factors of the ac product that add to 41 are <u>20</u> and <u>21</u>.

Step-by-step explanation:
1) The general form of a quadratic is
. Hence, multiplying 35 by 12 gives you the product of ac, which is 420.
2) We need to find two numbers that multiply to 420 and add up to 41 <u>simultaneously</u>. If we pull out the factors of 420, two of them will be 20 and 21, which multiply to 420 as well as add up to 41.
3) Write
as a sum.

Now, we can factor them out by grouping.

Since,
is common in both of the factors, we only take one of the
along with
and
.

16 is the answer just add
It rotates 360 degrees and 180 half way in a circular motion