P, Q, and R form the vertices of a triangle. QR = 7.8 RP = 15.7 and PQ = 11.6 Find the angle PRQ rounded to 1 DP

45.1°

Step-by-step explanation:

A triangle is a polygon with three sides and three angles. The types of triangles are scalene triangle, equilateral triangle, right angled triangle and obtuse triangle.  

Cosine rule states that given a triangle with sides a, b, c and their corresponding angles opposite to the sides as A, B, C. Then:

Given triangle PQR, let ∠PQR = x, to find angle PQR, we use cosine rule:

x = ∠PQR = 45.1°

step-by-step explanation:

. your answer will contain x - and y -terms. (1 point) x ( ¿¿ 2 − 7 ) 2 +( y 2 − 9 ) 2 √ ¿ 12. what is the distance from the directrix (the crocodile river) to the point ( x , y )? write this equation. your answer will contain a y -term.

s

step-by-step explanation: