Can any kind soul help me please

Use the cosine rule

M = 45°

Step-by-step explanation:

a²=b²+c²-2bc Cos A

m² = n² + p² - 2np cos M

(5.1)² = (7.2)² + (5.3)² - 2(7.2)(5.3) cos M

26.01 = 51.84 + 28.09 - 76.32 cos M

-53.92 = -76.32 cos M

0.7065 = cos M

M = (0.7065)

M = 45°

sum= when you add is how much the whole amount is

distance= when you use angles and it means how far it goes

step-by-step explanation: