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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.

7.4 2 -2.9 2 =answer 2 square root above answer to get the answer
AC
Answered by Abi C. • Maths tutor
6156 Views

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 a 2 + b 2 = c 2 where a, b and c...
VJ
Answered by Victoria J. • Maths tutor
5046 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 baguette....
AB
Answered by Alexander B. • French tutor
4166 Views

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
VJ
Answered by Victoria J. • French tutor
4225 Views

What is made when an acid is added to an alkali?

Acid + Alkali --> Salt + Water Hydrochloric Acid + Sodium Hydroxide --> Sodium Chloride + Water
VJ
3484 Views