Find HA and HM
Find the perimeter of triangle CHM

the perimeter of a triangle is the sum of all its three sides we can work out the perimeter using the following formula perimeter of a triangle equals sum of all three sides. If A, B and C are the sides of a triangle then the perimeter of triangle = a +b

+ c

explanation: a right triangle Z can calculate the perimeter of a triangle when we are provide only two sides. we can do this by using the Pythagoras theorem.

It is the top one. the answer is -7. that is smallest

Answer: d. 39 cmin the diagram, the approximate length of the minor arc de is 39 centimetres.step-by-step explanation: the formula for the length of an arc in a circle is as displayed below.let the length of the minor arc de = xx = 2( pi )r × angle of sector / 360°from this, we will substitute the values given from the problem into the formula to obtain the length of the minor arc de.x = 2( pi )r × angle of sector / 360°r = radius = 25cmpi as an approximate value = 3.14angle of sector = 120°x = 2( 3.14 )( 25 ) × 120° / 360°x = 157 × 1 / 4x = 39.25x = 39 ( rounded to the nearest whole number as an approximate value )