jajsjsjshshjjskNa
jajsjsjshshjjskNa jajsjsjshshjjskNa
  • 08-05-2022
  • Mathematics
contestada

A, B & C form a triangle where
∠
BAC = 90°.
AB = 8.4 mm and CA = 7 mm.
Find the length of BC, giving your answer rounded to 1 DP.

Respuesta :

idontdomaths idontdomaths
  • 08-05-2022

Answer:

10.9

Step-by-step explanation:

Pythagoras theorem- a² + b² = c²

Since this is a right angle with each side on the right angle's length given you can use pythagoras theorem.

7² + 8.44² = c²

= 49 + 70.56 = c²

= 119.56 = c²

∴ c = √119.56

= 10.9

Answer Link

Otras preguntas

Least to greatest. 5 1/2,5 1/4,5 2/3,5 3/8. Please help
What religion took hold across most of Europe during the Dark Ages?
a 5-meter ramp lifts objects to a height of 0.75 meters.What is the mechanical advantage of the ramp?
a worm travels 1250 millimeters.how many meters did the worm travel?
Compare the distance-time graph for a fast-moving object with the distance time graph of a slower moving object.
Napoleon’s decision to invade Russia was, perhaps, his greatest mistake. Which of the following statements is not true about the invasion of Russia? A. Napoleon
Which number is composite? 23 89 79 93
What is the sum of 667 and 23
ali wants to buy a piano. the piano measures 19/4 feet long. she has a space 5 feet
What are the days of the weeks in french?