Answer:
QR = 17 cm
Step-by-step explanation:
Δ RST is a 5- 12- 13 triangle with hypotenuse RT = 13 cm , then
TS = 5 cm and PT = 2 × 5 = 10 cm
So PS = 10 + 5 = 15 cm
PS is parallel to the vertical line from vertex Q and intersects the horizontal line projected from SR of length 20 - 12 = 8 cm
Using the right triangle formed calculate QR using Pythagoras' identity
QR² = 15² + 8² = 225 + 64 = 289 ( take square root of both sides )
QR =
= 17
Answer:
Step-by-step explanation:
La vaca
El pato
Answer:
113 - 180 = 67 degrees
Step-by-step explanation:
113 degrees from 180 degrees equals 67 degrees
Answer:
its b :) then can i help you
Answer:
Below.
Step-by-step explanation:
a = 3, b = -5 and c = -12.