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A ladder 7.4m long is leaning against a wall as shown in the diagram. The foot of the ladder is 2.9m away from the wall. Calculate the distance the ladder reaches up the wall to 2 significant figures.

7.4²-2.9²=answer²

square root above answer to get the answer

Answered by Abi C. • Maths tutor

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What is Pythagoras' Theorem?

You can use pythagoras' theorem to find the length of a side of a right angled triangle, provided that at least two of the lengths of the sides are known. The general rule is a² + b²...

Answered by Victoria J. • Maths tutor

4509 Views

What did you do at the weekend?

je suis allé au marché avec mes amis. ils s'appellent guillaume et Thierry. ça fait deux ans que je les connais. Moi et eux sont allés au marché pour faire des courses. On a acheté une pomme et une baguet...

Answered by Alexander B. • French tutor

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How to form the past participle of RE verbs

RE verbs Take off the RE ending and add a U to form the past participle. For example: Perdre (to lose) --> Perdu However there are some exceptions to the rule Prendre (to take) --> Pris

Answered by Victoria J. • French tutor

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